Same for me, been permanently banned from the game accused of cheating and I disputed the ban for many times.
Nothing shows up in My Ban History, no way the ToS team will even look at the case a bit more in depth than the standard auto notification of cheat detect which can be easily related to a bug in game that I suffered while playing.
I'm stuck in this absurd situation from weeks and there's no way out of it, just a bot response from the ToS saying: "We have performed all investigations possible on this issue and will not reverse the decision. Please do not expect further responses on this matter."